package com.mall;

import java.util.Random;

public class RandomUtil {

    public static String getRandomNo() {
        Random random = new Random();
        int rannum = (int) (random.nextDouble() * (99999 - 10000 + 1)) + 10000;// 获取5位随机数
        return String.valueOf(rannum + System.currentTimeMillis());
         }



    }
